Discrete Mathematics
5th Edition
ISBN: 9780134689562
Author: Dossey, John A.
Publisher: Pearson,
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Chapter A.1, Problem 14E
To determine
To write: The negation of the statement “Christmas is celebrated on December 25”.
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a) Suppose that we are carrying out the 1-phase simplex algorithm on a linear program in
standard inequality form (with 3 variables and 4 constraints) and suppose that we have
reached a point where we have obtained the following tableau. Apply one more pivot
operation, indicating the highlighted row and column and the row operations you carry
out. What can you conclude from your updated tableau?
x1
x2 x3
81 82
83
84
81
-2 0
1 1 0
0
0
3
82
3 0
-2 0
1
2
0
6
12
1
1
-3
0
0
1
0
2
84
-3 0
2
0
0 -1
1
4
-2 -2 0
11
0
0-4
0
-8
b) Solve the following linear program using the 2-phase simplex algorithm. You should give
the initial tableau, and each further tableau produced during the execution of the
algorithm. If the program has an optimal solution, give this solution and state its
objective value. If it does not have an optimal solution, say why.
maximize ₁ - 2x2+x34x4
subject to 2x1+x22x3x41,
5x1 + x2-x3-×4 ≤ −1,
2x1+x2-x3-34
2,
1, 2, 3, 40.
9. An elementary single period market model contains a risk-free asset with interest rate
r = 5% and a risky asset S which has price 30 at time t = 0 and will have either price
10 or 60 at time t = 1. Find a replicating strategy for a contingent claim with payoff
h(S₁) = max(20 - S₁, 0) + max(S₁ — 50, 0).
Total [8 Marks]
Chapter A Solutions
Discrete Mathematics
Ch. A.1 - Prob. 1ECh. A.1 - Prob. 2ECh. A.1 - Prob. 3ECh. A.1 - Prob. 4ECh. A.1 - Prob. 5ECh. A.1 - Prob. 6ECh. A.1 - Prob. 7ECh. A.1 - Prob. 8ECh. A.1 - Prob. 9ECh. A.1 - Prob. 10E
Ch. A.1 - Prob. 11ECh. A.1 - Prob. 12ECh. A.1 - Prob. 13ECh. A.1 - Prob. 14ECh. A.1 - Prob. 15ECh. A.1 - Prob. 16ECh. A.1 - Write the negations of the statements in Exercises...Ch. A.1 - Prob. 18ECh. A.1 - Prob. 19ECh. A.1 - Prob. 20ECh. A.1 - Prob. 21ECh. A.1 - Prob. 22ECh. A.1 - Prob. 23ECh. A.1 - Prob. 24ECh. A.1 - Prob. 25ECh. A.1 - Prob. 26ECh. A.1 - Prob. 27ECh. A.1 - Prob. 28ECh. A.1 - Prob. 29ECh. A.1 - Prob. 30ECh. A.1 - Prob. 31ECh. A.1 - Prob. 32ECh. A.1 - Prob. 33ECh. A.1 - Prob. 34ECh. A.1 - Prob. 35ECh. A.1 - Prob. 36ECh. A.2 - Prob. 1ECh. A.2 - In Exercises 1–10, construct a truth table for...Ch. A.2 - In Exercises 1–10, construct a truth table for...Ch. A.2 - Prob. 4ECh. A.2 - Prob. 5ECh. A.2 - Prob. 6ECh. A.2 - Prob. 7ECh. A.2 - Prob. 8ECh. A.2 - Prob. 9ECh. A.2 - Prob. 10ECh. A.2 - Prob. 11ECh. A.2 - Prob. 12ECh. A.2 - Prob. 13ECh. A.2 - Prob. 14ECh. A.2 - Prob. 15ECh. A.2 - Prob. 16ECh. A.2 - Prob. 17ECh. A.2 - Prob. 18ECh. A.2 - Prob. 19ECh. A.2 - Prob. 20ECh. A.2 - Prob. 21ECh. A.2 - Prob. 22ECh. A.2 - Prob. 23ECh. A.2 - Prob. 24ECh. A.2 - Prob. 25ECh. A.2 - Prob. 26ECh. A.2 - Prob. 27ECh. A.2 - Prob. 28ECh. A.2 - Prob. 29ECh. A.2 - The statement [(p → q) ∧ ~q] → ~p is called modus...Ch. A.2 - Prob. 31ECh. A.2 - Prob. 32ECh. A.2 - Prob. 33ECh. A.2 - Prob. 34ECh. A.3 - Prove that ~(p ∧ ~q) is logically equivalent to p...Ch. A.3 - Prove that the law of syllogism is a tautology.
Ch. A.3 - Prove that if m is an integer and m2 is odd, then...Ch. A.3 - Prove, as in Example A.14, that there is no...Ch. A.3 - Prove the theorems in Exercises 5–12. Assume that...Ch. A.3 - Prove the theorems in Exercises 5–12. Assume that...Ch. A.3 - Prove the theorems in Exercises 5–12. Assume that...Ch. A.3 - Prove the theorems in Exercises 5–12. Assume that...Ch. A.3 - Prove the theorems in Exercises 5-12. Assume that...Ch. A.3 - Prove the theorems in Exercises 5–12. Assume that...Ch. A.3 - Prove the theorems in Exercises 5-12. Assume that...Ch. A.3 - Prove the theorems in Exercises 5-12. Assume that...Ch. A.3 - Prove or disprove the results in Exercises 13–22....Ch. A.3 - Prove or disprove the results in Exercises 13–22....Ch. A.3 - Prove or disprove the results in Exercises 13–22....Ch. A.3 - Prove or disprove the results in Exercises 13–22....Ch. A.3 - Prove or disprove the results in Exercises 13–22....Ch. A.3 - Prove or disprove the results in Exercises 13-22....Ch. A.3 - Prove or disprove the results in Exercises 13–22....Ch. A.3 - Prove or disprove the results in Exercises 13-22....Ch. A.3 - Prob. 21ECh. A.3 - Prob. 22ECh. A.3 - Prob. 23ECh. A.3 - Prob. 24ECh. A.3 - Prob. 25ECh. A.3 - Prob. 26ECh. A.3 - Prob. 27ECh. A.3 - Prob. 28ECh. A - Prob. 1SECh. A - Prob. 2SECh. A - Prob. 3SECh. A - Prob. 4SECh. A - Prob. 5SECh. A - Prob. 6SECh. A - Prob. 7SECh. A - Prob. 8SECh. A - Prob. 9SECh. A - Prob. 10SECh. A - Prob. 11SECh. A - Prob. 12SECh. A - Prob. 13SECh. A - Prob. 14SECh. A - Prob. 15SECh. A - Prob. 16SECh. A - Prob. 17SECh. A - Prob. 18SECh. A - Prob. 19SECh. A - Prob. 20SECh. A - Prob. 21SECh. A - For each statement in Exercises 21–24, write (a)...Ch. A - Prob. 23SECh. A - Prob. 24SECh. A - Prob. 25SECh. A - Prob. 26SECh. A - Prob. 27SECh. A - Prob. 28SECh. A - Prob. 29SECh. A - Prob. 30SECh. A - Prob. 31SECh. A - Prob. 32SECh. A - Prob. 33SECh. A - Prob. 34SECh. A - Prob. 35SECh. A - Prob. 36SECh. A - Prob. 37SECh. A - Prob. 38SECh. A - Prob. 39SECh. A - Prob. 40SECh. A - Prob. 41SECh. A - Prob. 42SECh. A - Prob. 43SECh. A - Prob. 44SE
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